EP0676603A3 - Defrost control system. - Google Patents

Defrost control system. Download PDF

Info

Publication number
EP0676603A3
EP0676603A3 EP95104981A EP95104981A EP0676603A3 EP 0676603 A3 EP0676603 A3 EP 0676603A3 EP 95104981 A EP95104981 A EP 95104981A EP 95104981 A EP95104981 A EP 95104981A EP 0676603 A3 EP0676603 A3 EP 0676603A3
Authority
EP
European Patent Office
Prior art keywords
control system
defrost control
defrost
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95104981A
Other languages
German (de)
French (fr)
Other versions
EP0676603A2 (en
Inventor
Jacob Shavit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Control and Regulation Circuits Meitav Ltd
Original Assignee
Control and Regulation Circuits Meitav Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Control and Regulation Circuits Meitav Ltd filed Critical Control and Regulation Circuits Meitav Ltd
Publication of EP0676603A2 publication Critical patent/EP0676603A2/en
Publication of EP0676603A3 publication Critical patent/EP0676603A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
EP95104981A 1994-04-11 1995-04-03 Defrost control system. Withdrawn EP0676603A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL10927894A IL109278A (en) 1994-04-11 1994-04-11 Defrost control system
IL10927894 1994-04-11
JP7262700A JPH09113101A (en) 1994-04-11 1995-10-11 Defrosting control system

Publications (2)

Publication Number Publication Date
EP0676603A2 EP0676603A2 (en) 1995-10-11
EP0676603A3 true EP0676603A3 (en) 1997-01-08

Family

ID=26322813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104981A Withdrawn EP0676603A3 (en) 1994-04-11 1995-04-03 Defrost control system.

Country Status (4)

Country Link
US (1) US5463875A (en)
EP (1) EP0676603A3 (en)
JP (1) JPH09113101A (en)
IL (1) IL109278A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631620B2 (en) 2002-01-31 2003-10-14 General Electric Company Adaptive refrigerator defrost method and apparatus
CN100337080C (en) * 2003-03-12 2007-09-12 乐金电子(天津)电器有限公司 Protector of refrigerator adjustable valve
DE10315523A1 (en) * 2003-04-04 2004-10-14 BSH Bosch und Siemens Hausgeräte GmbH Refrigerator with adaptive automatic defrost and defrosting process for it
US7836707B2 (en) * 2006-01-20 2010-11-23 Carrier Corporation Methods for detecting and responding to freezing coils in HVAC systems
WO2008109927A1 (en) * 2007-03-09 2008-09-18 Kearns Stuart Christopher Jame A refrigeration control system
US9890980B2 (en) 2013-09-26 2018-02-13 Carrier Corporation System and method of freeze protection of a heat exchanger in an HVAC system
KR102627972B1 (en) * 2018-02-23 2024-01-23 엘지전자 주식회사 Refrigerator
KR102614564B1 (en) * 2018-03-08 2023-12-18 엘지전자 주식회사 Refrigerator and controlling method the same
KR102521994B1 (en) * 2018-03-08 2023-04-17 엘지전자 주식회사 Refrigerator
CN108895734A (en) * 2018-07-25 2018-11-27 珠海格力电器股份有限公司 Defrosting judgment method for heat pump water heater
KR20220018178A (en) * 2020-08-06 2022-02-15 엘지전자 주식회사 refrigerator and operating method thereof
CN112033081B (en) * 2020-08-31 2022-01-11 山东冰河制冷技术有限公司 Device for assisting electric heating defrosting by utilizing external air of refrigerator and operation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH181894A (en) * 1941-04-10 1936-01-15 Sulzer Ag Cold exchanger.
US3003330A (en) * 1959-06-26 1961-10-10 George L Coad Heat pump defrosting unit
US3250083A (en) * 1964-06-10 1966-05-10 Controls Co Of America Frost sensing device
US3383877A (en) * 1966-05-10 1968-05-21 Ranco Inc Defrost control means for refrigerating systems
US3444698A (en) * 1968-01-04 1969-05-20 Ranco Inc Control apparatus for refrigerated display case
US3623334A (en) * 1969-11-28 1971-11-30 Gen Motors Corp Defrost control responsive to air pressure differential
US4248052A (en) * 1978-11-03 1981-02-03 Robertshaw Controls Company Flow sensor and defrost system including same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904711A (en) * 1959-01-02 1962-08-29 Parnall & Sons Ltd Improved means for de-frosting refrigerating apparatus
GB975197A (en) * 1962-04-12 1964-11-11 Stone J & Co Ltd Improvements relating to means for controlling the defrosting of refrigerating units
US3362183A (en) * 1966-01-21 1968-01-09 Texas Instruments Inc Fluid flow control in refrigeration systems
US3872683A (en) * 1973-09-06 1975-03-25 Texas Instruments Inc Refrigeration defrost system
US4191026A (en) * 1977-02-14 1980-03-04 Electric Power Research Institute, Inc. Apparatus for defrosting low temperature heat exchanger
DE2721521A1 (en) * 1977-05-12 1978-11-16 Schmitz Kuehler Baierbrunn Defrosting equipment for refrigeration system - has air conveying channels and heat register heating cross=section of flow at even rate
US5345775A (en) * 1993-03-03 1994-09-13 Ridenour Ralph Gaylord Refrigeration system detection assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH181894A (en) * 1941-04-10 1936-01-15 Sulzer Ag Cold exchanger.
US3003330A (en) * 1959-06-26 1961-10-10 George L Coad Heat pump defrosting unit
US3250083A (en) * 1964-06-10 1966-05-10 Controls Co Of America Frost sensing device
US3383877A (en) * 1966-05-10 1968-05-21 Ranco Inc Defrost control means for refrigerating systems
US3444698A (en) * 1968-01-04 1969-05-20 Ranco Inc Control apparatus for refrigerated display case
US3623334A (en) * 1969-11-28 1971-11-30 Gen Motors Corp Defrost control responsive to air pressure differential
US4248052A (en) * 1978-11-03 1981-02-03 Robertshaw Controls Company Flow sensor and defrost system including same

Also Published As

Publication number Publication date
JPH09113101A (en) 1997-05-02
IL109278A (en) 1996-08-04
EP0676603A2 (en) 1995-10-11
US5463875A (en) 1995-11-07

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